This treatment is alertable in ACBL regulations. Strong two bids are old-fashioned opening suit bids at the two level, specifying unbalanced hands two strong to open at the one level. Common requirement includes: * 20 HCPs or more or its playing equivalent, or 4 or less losers. * A good 5 card suit or a 6 card suit. These opening bids are forcing. As these hands are rare, many do not use this treatment now, and instead use a strong two clubs to open all strong hands. This reserves the other two level bids for preempts (weak two bids).